Are you doing any cholesteral drugs (statins)? I have said before about my problems with Lipitor. Been off it for years now. Never got to extreme pain other than when I got cramps, but had near constant sore , disfunctional legs. I had gotten off it completely for a while, but current doc wanted me on something so been doing Prevastat for a while now. I do still get some bad cramps (usually when waking up and start moving) but they have been months apart and usually after doing ladder work etc the previous day. So can't really blame on any drug. Nothing like the daily agony of Lipitor.